./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e5878b7d2af5fd4b66050c0dbed52215fb6ea8477622dc26391a98be7bc7f1ca --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:27:54,980 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:27:55,040 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 16:27:55,044 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:27:55,045 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:27:55,065 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:27:55,066 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:27:55,066 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:27:55,067 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:27:55,067 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:27:55,068 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:27:55,068 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:27:55,069 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:27:55,069 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:27:55,070 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:27:55,070 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:27:55,071 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:27:55,072 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:27:55,072 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:27:55,073 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:27:55,073 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:27:55,074 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:27:55,074 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:27:55,075 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:27:55,075 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:27:55,076 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:27:55,076 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:27:55,077 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:27:55,077 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:27:55,077 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:27:55,078 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:27:55,078 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 16:27:55,078 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 16:27:55,078 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:27:55,079 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:27:55,079 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:27:55,079 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:27:55,079 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:27:55,079 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:27:55,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:27:55,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:27:55,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:27:55,080 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:27:55,081 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:27:55,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:27:55,081 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:27:55,081 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:27:55,081 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:27:55,082 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:27:55,082 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5878b7d2af5fd4b66050c0dbed52215fb6ea8477622dc26391a98be7bc7f1ca [2023-12-02 16:27:55,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:27:55,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:27:55,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:27:55,311 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:27:55,311 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:27:55,312 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c [2023-12-02 16:27:58,115 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:27:58,282 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:27:58,283 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/sv-benchmarks/c/seq-mthreaded/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c [2023-12-02 16:27:58,293 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/data/08e6674fa/c02efd8f98b341378c2a9d1310485cfd/FLAGeb0ad74cf [2023-12-02 16:27:58,308 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/data/08e6674fa/c02efd8f98b341378c2a9d1310485cfd [2023-12-02 16:27:58,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:27:58,312 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:27:58,313 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:27:58,313 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:27:58,319 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:27:58,319 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:27:58" (1/1) ... [2023-12-02 16:27:58,320 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41fe2c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:27:58, skipping insertion in model container [2023-12-02 16:27:58,321 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:27:58" (1/1) ... [2023-12-02 16:27:58,352 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:27:58,548 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:27:58,560 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:27:58,595 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:27:58,610 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:27:58,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:27:58 WrapperNode [2023-12-02 16:27:58,610 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:27:58,611 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:27:58,611 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:27:58,611 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:27:58,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:27:58" (1/1) ... [2023-12-02 16:27:58,626 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:27:58" (1/1) ... [2023-12-02 16:27:58,652 INFO L138 Inliner]: procedures = 23, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 232 [2023-12-02 16:27:58,653 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:27:58,653 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:27:58,653 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:27:58,653 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:27:58,663 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:27:58" (1/1) ... [2023-12-02 16:27:58,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:27:58" (1/1) ... [2023-12-02 16:27:58,666 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:27:58" (1/1) ... [2023-12-02 16:27:58,666 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:27:58" (1/1) ... [2023-12-02 16:27:58,673 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:27:58" (1/1) ... [2023-12-02 16:27:58,678 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:27:58" (1/1) ... [2023-12-02 16:27:58,680 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:27:58" (1/1) ... [2023-12-02 16:27:58,682 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:27:58" (1/1) ... [2023-12-02 16:27:58,686 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:27:58,687 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:27:58,687 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:27:58,687 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:27:58,688 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:27:58" (1/1) ... [2023-12-02 16:27:58,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:27:58,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:27:58,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:27:58,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:27:58,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:27:58,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:27:58,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:27:58,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:27:58,831 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:27:58,833 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:27:59,119 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:27:59,376 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:27:59,377 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:27:59,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:27:59 BoogieIcfgContainer [2023-12-02 16:27:59,378 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:27:59,381 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:27:59,381 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:27:59,384 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:27:59,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:27:58" (1/3) ... [2023-12-02 16:27:59,385 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5937d167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:27:59, skipping insertion in model container [2023-12-02 16:27:59,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:27:58" (2/3) ... [2023-12-02 16:27:59,385 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5937d167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:27:59, skipping insertion in model container [2023-12-02 16:27:59,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:27:59" (3/3) ... [2023-12-02 16:27:59,386 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c [2023-12-02 16:27:59,405 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:27:59,405 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-12-02 16:27:59,448 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:27:59,453 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3de658d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:27:59,453 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-12-02 16:27:59,456 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 23 states have (on average 1.8695652173913044) internal successors, (43), 37 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:27:59,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 16:27:59,461 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:27:59,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 16:27:59,462 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 16:27:59,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:27:59,466 INFO L85 PathProgramCache]: Analyzing trace with hash 11466649, now seen corresponding path program 1 times [2023-12-02 16:27:59,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:27:59,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446294162] [2023-12-02 16:27:59,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:27:59,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:27:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:27:59,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:27:59,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:27:59,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446294162] [2023-12-02 16:27:59,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446294162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:27:59,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:27:59,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:27:59,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2851711] [2023-12-02 16:27:59,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:27:59,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:27:59,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:27:59,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:27:59,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:27:59,866 INFO L87 Difference]: Start difference. First operand has 38 states, 23 states have (on average 1.8695652173913044) internal successors, (43), 37 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:27:59,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:27:59,930 INFO L93 Difference]: Finished difference Result 104 states and 123 transitions. [2023-12-02 16:27:59,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:27:59,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-12-02 16:27:59,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:27:59,940 INFO L225 Difference]: With dead ends: 104 [2023-12-02 16:27:59,940 INFO L226 Difference]: Without dead ends: 67 [2023-12-02 16:27:59,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:27:59,945 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 34 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:27:59,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 98 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:27:59,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-12-02 16:27:59,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 55. [2023-12-02 16:27:59,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 43 states have (on average 1.7674418604651163) internal successors, (76), 54 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:27:59,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 76 transitions. [2023-12-02 16:27:59,976 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 76 transitions. Word has length 4 [2023-12-02 16:27:59,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:27:59,976 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 76 transitions. [2023-12-02 16:27:59,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:27:59,977 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 76 transitions. [2023-12-02 16:27:59,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 16:27:59,977 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:27:59,977 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 16:27:59,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 16:27:59,978 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 16:27:59,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:27:59,979 INFO L85 PathProgramCache]: Analyzing trace with hash 355495304, now seen corresponding path program 1 times [2023-12-02 16:27:59,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:27:59,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708073852] [2023-12-02 16:27:59,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:27:59,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:28:00,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:28:00,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:28:00,266 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:28:00,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708073852] [2023-12-02 16:28:00,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708073852] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:28:00,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:28:00,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:28:00,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606434784] [2023-12-02 16:28:00,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:28:00,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:28:00,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:28:00,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:28:00,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:28:00,270 INFO L87 Difference]: Start difference. First operand 55 states and 76 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:00,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:28:00,391 INFO L93 Difference]: Finished difference Result 93 states and 119 transitions. [2023-12-02 16:28:00,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:28:00,392 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-12-02 16:28:00,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:28:00,394 INFO L225 Difference]: With dead ends: 93 [2023-12-02 16:28:00,394 INFO L226 Difference]: Without dead ends: 90 [2023-12-02 16:28:00,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:28:00,396 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 34 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:28:00,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 27 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:28:00,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-02 16:28:00,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 71. [2023-12-02 16:28:00,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 59 states have (on average 1.728813559322034) internal successors, (102), 70 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:00,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 102 transitions. [2023-12-02 16:28:00,408 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 102 transitions. Word has length 5 [2023-12-02 16:28:00,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:28:00,408 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 102 transitions. [2023-12-02 16:28:00,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:00,409 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 102 transitions. [2023-12-02 16:28:00,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 16:28:00,409 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:28:00,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-02 16:28:00,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 16:28:00,410 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 16:28:00,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:28:00,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1864547231, now seen corresponding path program 1 times [2023-12-02 16:28:00,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:28:00,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775481985] [2023-12-02 16:28:00,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:28:00,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:28:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:28:00,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:28:00,630 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:28:00,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775481985] [2023-12-02 16:28:00,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775481985] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:28:00,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:28:00,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:28:00,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077657654] [2023-12-02 16:28:00,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:28:00,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:28:00,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:28:00,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:28:00,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:28:00,633 INFO L87 Difference]: Start difference. First operand 71 states and 102 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:00,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:28:00,736 INFO L93 Difference]: Finished difference Result 89 states and 115 transitions. [2023-12-02 16:28:00,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:28:00,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-12-02 16:28:00,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:28:00,738 INFO L225 Difference]: With dead ends: 89 [2023-12-02 16:28:00,738 INFO L226 Difference]: Without dead ends: 86 [2023-12-02 16:28:00,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:28:00,740 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 30 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:28:00,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 30 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:28:00,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-02 16:28:00,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 72. [2023-12-02 16:28:00,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 60 states have (on average 1.6833333333333333) internal successors, (101), 71 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:00,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 101 transitions. [2023-12-02 16:28:00,751 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 101 transitions. Word has length 6 [2023-12-02 16:28:00,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:28:00,752 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 101 transitions. [2023-12-02 16:28:00,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:00,752 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 101 transitions. [2023-12-02 16:28:00,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 16:28:00,753 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:28:00,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:28:00,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 16:28:00,753 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 16:28:00,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:28:00,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1966389078, now seen corresponding path program 1 times [2023-12-02 16:28:00,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:28:00,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777749712] [2023-12-02 16:28:00,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:28:00,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:28:00,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:28:01,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:28:01,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:28:01,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777749712] [2023-12-02 16:28:01,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777749712] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:28:01,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:28:01,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:28:01,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143793605] [2023-12-02 16:28:01,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:28:01,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:28:01,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:28:01,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:28:01,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:28:01,019 INFO L87 Difference]: Start difference. First operand 72 states and 101 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:01,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:28:01,129 INFO L93 Difference]: Finished difference Result 86 states and 112 transitions. [2023-12-02 16:28:01,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:28:01,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-12-02 16:28:01,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:28:01,131 INFO L225 Difference]: With dead ends: 86 [2023-12-02 16:28:01,131 INFO L226 Difference]: Without dead ends: 83 [2023-12-02 16:28:01,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:28:01,133 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 26 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:28:01,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 33 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:28:01,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-12-02 16:28:01,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 73. [2023-12-02 16:28:01,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 61 states have (on average 1.639344262295082) internal successors, (100), 72 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:01,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 100 transitions. [2023-12-02 16:28:01,143 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 100 transitions. Word has length 7 [2023-12-02 16:28:01,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:28:01,143 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 100 transitions. [2023-12-02 16:28:01,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:01,144 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 100 transitions. [2023-12-02 16:28:01,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 16:28:01,144 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:28:01,144 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:28:01,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 16:28:01,145 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 16:28:01,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:28:01,146 INFO L85 PathProgramCache]: Analyzing trace with hash -828519037, now seen corresponding path program 1 times [2023-12-02 16:28:01,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:28:01,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214723607] [2023-12-02 16:28:01,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:28:01,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:28:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:28:01,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:28:01,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:28:01,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214723607] [2023-12-02 16:28:01,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214723607] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:28:01,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:28:01,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:28:01,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875138490] [2023-12-02 16:28:01,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:28:01,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:28:01,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:28:01,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:28:01,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:28:01,443 INFO L87 Difference]: Start difference. First operand 73 states and 100 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:01,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:28:01,556 INFO L93 Difference]: Finished difference Result 134 states and 184 transitions. [2023-12-02 16:28:01,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:28:01,557 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-02 16:28:01,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:28:01,558 INFO L225 Difference]: With dead ends: 134 [2023-12-02 16:28:01,558 INFO L226 Difference]: Without dead ends: 80 [2023-12-02 16:28:01,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:28:01,560 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 21 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:28:01,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 37 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:28:01,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-12-02 16:28:01,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 74. [2023-12-02 16:28:01,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 62 states have (on average 1.5806451612903225) internal successors, (98), 73 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:01,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 98 transitions. [2023-12-02 16:28:01,568 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 98 transitions. Word has length 8 [2023-12-02 16:28:01,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:28:01,569 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 98 transitions. [2023-12-02 16:28:01,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:01,569 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 98 transitions. [2023-12-02 16:28:01,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 16:28:01,570 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:28:01,570 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:28:01,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 16:28:01,571 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 16:28:01,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:28:01,571 INFO L85 PathProgramCache]: Analyzing trace with hash -191983477, now seen corresponding path program 1 times [2023-12-02 16:28:01,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:28:01,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501714434] [2023-12-02 16:28:01,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:28:01,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:28:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:28:01,669 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:28:01,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:28:01,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501714434] [2023-12-02 16:28:01,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501714434] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:28:01,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:28:01,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:28:01,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859740127] [2023-12-02 16:28:01,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:28:01,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:28:01,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:28:01,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:28:01,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:28:01,672 INFO L87 Difference]: Start difference. First operand 74 states and 98 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:01,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:28:01,708 INFO L93 Difference]: Finished difference Result 155 states and 206 transitions. [2023-12-02 16:28:01,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:28:01,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-12-02 16:28:01,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:28:01,710 INFO L225 Difference]: With dead ends: 155 [2023-12-02 16:28:01,710 INFO L226 Difference]: Without dead ends: 96 [2023-12-02 16:28:01,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:28:01,712 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 20 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:28:01,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 64 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:28:01,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-02 16:28:01,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 84. [2023-12-02 16:28:01,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 72 states have (on average 1.6111111111111112) internal successors, (116), 83 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:01,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 116 transitions. [2023-12-02 16:28:01,723 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 116 transitions. Word has length 16 [2023-12-02 16:28:01,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:28:01,723 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 116 transitions. [2023-12-02 16:28:01,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:01,724 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 116 transitions. [2023-12-02 16:28:01,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 16:28:01,725 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:28:01,725 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:28:01,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 16:28:01,726 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 16:28:01,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:28:01,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1889552639, now seen corresponding path program 1 times [2023-12-02 16:28:01,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:28:01,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715711247] [2023-12-02 16:28:01,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:28:01,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:28:01,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:28:01,855 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:28:01,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:28:01,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715711247] [2023-12-02 16:28:01,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715711247] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:28:01,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:28:01,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:28:01,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381817279] [2023-12-02 16:28:01,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:28:01,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:28:01,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:28:01,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:28:01,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:28:01,858 INFO L87 Difference]: Start difference. First operand 84 states and 116 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:01,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:28:01,881 INFO L93 Difference]: Finished difference Result 157 states and 221 transitions. [2023-12-02 16:28:01,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:28:01,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-12-02 16:28:01,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:28:01,882 INFO L225 Difference]: With dead ends: 157 [2023-12-02 16:28:01,882 INFO L226 Difference]: Without dead ends: 84 [2023-12-02 16:28:01,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:28:01,884 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:28:01,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:28:01,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-02 16:28:01,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-12-02 16:28:01,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 72 states have (on average 1.5277777777777777) internal successors, (110), 83 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:01,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 110 transitions. [2023-12-02 16:28:01,891 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 110 transitions. Word has length 20 [2023-12-02 16:28:01,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:28:01,892 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 110 transitions. [2023-12-02 16:28:01,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:01,892 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 110 transitions. [2023-12-02 16:28:01,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 16:28:01,893 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:28:01,893 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:28:01,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 16:28:01,894 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 16:28:01,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:28:01,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1079480007, now seen corresponding path program 1 times [2023-12-02 16:28:01,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:28:01,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676063472] [2023-12-02 16:28:01,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:28:01,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:28:01,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:28:01,971 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:28:01,972 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:28:01,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676063472] [2023-12-02 16:28:01,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676063472] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:28:01,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:28:01,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:28:01,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420315866] [2023-12-02 16:28:01,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:28:01,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:28:01,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:28:01,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:28:01,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:28:01,974 INFO L87 Difference]: Start difference. First operand 84 states and 110 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:01,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:28:01,999 INFO L93 Difference]: Finished difference Result 155 states and 187 transitions. [2023-12-02 16:28:01,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:28:01,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-12-02 16:28:02,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:28:02,000 INFO L225 Difference]: With dead ends: 155 [2023-12-02 16:28:02,000 INFO L226 Difference]: Without dead ends: 85 [2023-12-02 16:28:02,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:28:02,002 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 20 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:28:02,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 80 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:28:02,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-12-02 16:28:02,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 70. [2023-12-02 16:28:02,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 58 states have (on average 1.4827586206896552) internal successors, (86), 69 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:02,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 86 transitions. [2023-12-02 16:28:02,008 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 86 transitions. Word has length 21 [2023-12-02 16:28:02,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:28:02,008 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 86 transitions. [2023-12-02 16:28:02,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:02,009 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 86 transitions. [2023-12-02 16:28:02,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 16:28:02,010 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:28:02,010 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:28:02,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 16:28:02,010 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 16:28:02,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:28:02,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1974080083, now seen corresponding path program 1 times [2023-12-02 16:28:02,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:28:02,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695122494] [2023-12-02 16:28:02,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:28:02,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:28:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:28:02,506 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:28:02,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:28:02,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695122494] [2023-12-02 16:28:02,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695122494] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:28:02,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284110281] [2023-12-02 16:28:02,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:28:02,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:28:02,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:28:02,509 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:28:02,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 16:28:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:28:02,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 16:28:02,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:28:04,426 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:28:04,427 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:28:06,793 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:28:06,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284110281] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:28:06,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [369567542] [2023-12-02 16:28:06,811 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2023-12-02 16:28:06,811 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:28:06,814 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:28:06,819 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:28:06,819 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:28:12,451 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:28:16,101 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1843#(and (or (and (= ~mode2~0 0) (exists ((v_~mode2~0_65 Int)) (not (= (mod v_~mode2~0_65 256) 0)))) (and (= ~mode2~0 1) (or (exists ((v_~p2_new~0_41 Int)) (and (<= (mod v_~p2_new~0_41 256) 127) (or (and (<= 128 (mod ~send2~0 256)) (or (and (= (mod ~send2~0 256) (+ 256 ~p2_old~0)) (= v_~p2_new~0_41 ~nomsg~0)) (and (not (= v_~p2_new~0_41 ~nomsg~0)) (= ~p2_old~0 (mod v_~p2_new~0_41 256))))) (and (<= (mod ~send2~0 256) 127) (or (and (= v_~p2_new~0_41 ~nomsg~0) (= (mod ~send2~0 256) ~p2_old~0)) (and (not (= v_~p2_new~0_41 ~nomsg~0)) (= ~p2_old~0 (mod v_~p2_new~0_41 256)))))))) (exists ((v_~p2_new~0_41 Int)) (and (or (and (or (and (not (= v_~p2_new~0_41 ~nomsg~0)) (= (+ 256 ~p2_old~0) (mod v_~p2_new~0_41 256))) (and (= (mod ~send2~0 256) (+ 256 ~p2_old~0)) (= v_~p2_new~0_41 ~nomsg~0))) (<= 128 (mod ~send2~0 256))) (and (<= (mod ~send2~0 256) 127) (or (and (= v_~p2_new~0_41 ~nomsg~0) (= (mod ~send2~0 256) ~p2_old~0)) (and (not (= v_~p2_new~0_41 ~nomsg~0)) (= (+ 256 ~p2_old~0) (mod v_~p2_new~0_41 256)))))) (<= 128 (mod v_~p2_new~0_41 256))))) (exists ((v_~mode2~0_65 Int)) (= (mod v_~mode2~0_65 256) 0)))) (= ~nomsg~0 ~p1_new~0) (<= 0 ~mode1~0) (= ~p3_new~0 ~nomsg~0) (<= (+ 2147483649 ~st2~0 ~st1~0) 0) (or (and (= ~mode3~0 0) (exists ((v_~mode3~0_64 Int)) (not (= (mod v_~mode3~0_64 256) 0)))) (and (= ~mode3~0 1) (or (and (<= 128 (mod ~send3~0 256)) (or (exists ((v_~p3_new~0_33 Int)) (and (<= 128 (mod v_~p3_new~0_33 256)) (or (and (not (= v_~p3_new~0_33 ~nomsg~0)) (= (+ ~p3_old~0 256) (mod v_~p3_new~0_33 256))) (and (= (+ ~p3_old~0 256) (mod ~send3~0 256)) (= v_~p3_new~0_33 ~nomsg~0))))) (exists ((v_~p3_new~0_33 Int)) (and (<= (mod v_~p3_new~0_33 256) 127) (or (and (not (= v_~p3_new~0_33 ~nomsg~0)) (= ~p3_old~0 (mod v_~p3_new~0_33 256))) (and (= (+ ~p3_old~0 256) (mod ~send3~0 256)) (= v_~p3_new~0_33 ~nomsg~0))))))) (and (or (exists ((v_~p3_new~0_33 Int)) (and (<= 128 (mod v_~p3_new~0_33 256)) (or (and (= ~p3_old~0 (mod ~send3~0 256)) (= v_~p3_new~0_33 ~nomsg~0)) (and (not (= v_~p3_new~0_33 ~nomsg~0)) (= (+ ~p3_old~0 256) (mod v_~p3_new~0_33 256)))))) (exists ((v_~p3_new~0_33 Int)) (and (or (and (not (= v_~p3_new~0_33 ~nomsg~0)) (= ~p3_old~0 (mod v_~p3_new~0_33 256))) (and (= ~p3_old~0 (mod ~send3~0 256)) (= v_~p3_new~0_33 ~nomsg~0))) (<= (mod v_~p3_new~0_33 256) 127)))) (<= (mod ~send3~0 256) 127))) (exists ((v_~mode3~0_64 Int)) (= (mod v_~mode3~0_64 256) 0)))) (= ~nomsg~0 ~p2_new~0) (<= ~mode1~0 1))' at error location [2023-12-02 16:28:16,101 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:28:16,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:28:16,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 8] total 18 [2023-12-02 16:28:16,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547506928] [2023-12-02 16:28:16,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:28:16,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-02 16:28:16,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:28:16,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-02 16:28:16,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=1077, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 16:28:16,104 INFO L87 Difference]: Start difference. First operand 70 states and 86 transitions. Second operand has 20 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 19 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:16,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:28:16,249 INFO L93 Difference]: Finished difference Result 76 states and 92 transitions. [2023-12-02 16:28:16,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 16:28:16,249 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 19 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2023-12-02 16:28:16,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:28:16,250 INFO L225 Difference]: With dead ends: 76 [2023-12-02 16:28:16,250 INFO L226 Difference]: Without dead ends: 70 [2023-12-02 16:28:16,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 667 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=255, Invalid=1077, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 16:28:16,252 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 169 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:28:16,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 43 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:28:16,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-12-02 16:28:16,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 64. [2023-12-02 16:28:16,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 58 states have (on average 1.2758620689655173) internal successors, (74), 63 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:16,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 74 transitions. [2023-12-02 16:28:16,257 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 74 transitions. Word has length 23 [2023-12-02 16:28:16,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:28:16,257 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 74 transitions. [2023-12-02 16:28:16,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 19 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:16,258 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 74 transitions. [2023-12-02 16:28:16,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-02 16:28:16,258 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:28:16,259 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:28:16,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 16:28:16,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:28:16,462 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 16:28:16,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:28:16,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1284577611, now seen corresponding path program 1 times [2023-12-02 16:28:16,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:28:16,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566203925] [2023-12-02 16:28:16,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:28:16,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:28:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:28:16,827 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:28:16,827 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:28:16,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566203925] [2023-12-02 16:28:16,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566203925] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:28:16,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346615767] [2023-12-02 16:28:16,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:28:16,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:28:16,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:28:16,829 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:28:16,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 16:28:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:28:16,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 16:28:16,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:28:18,422 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:28:18,422 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:28:20,011 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:28:20,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346615767] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:28:20,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1811773706] [2023-12-02 16:28:20,014 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2023-12-02 16:28:20,014 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:28:20,015 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:28:20,015 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:28:20,015 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:28:25,376 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:28:28,824 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2168#(and (= ~nomsg~0 ~p1_new~0) (or (and (exists ((v_~mode3~0_73 Int)) (not (= (mod v_~mode3~0_73 256) 0))) (= ~mode3~0 0)) (and (= ~mode3~0 1) (exists ((v_~mode3~0_73 Int)) (= (mod v_~mode3~0_73 256) 0)) (or (exists ((v_~p3_new~0_40 Int)) (and (<= 128 (mod v_~p3_new~0_40 256)) (or (and (or (and (not (= v_~p3_new~0_40 ~nomsg~0)) (= (+ ~p3_old~0 256) (mod v_~p3_new~0_40 256))) (and (= ~p3_old~0 (mod ~send3~0 256)) (= v_~p3_new~0_40 ~nomsg~0))) (<= (mod ~send3~0 256) 127)) (and (or (and (= (+ ~p3_old~0 256) (mod ~send3~0 256)) (= v_~p3_new~0_40 ~nomsg~0)) (and (not (= v_~p3_new~0_40 ~nomsg~0)) (= (+ ~p3_old~0 256) (mod v_~p3_new~0_40 256)))) (<= 128 (mod ~send3~0 256)))))) (exists ((v_~p3_new~0_40 Int)) (and (or (and (<= (mod ~send3~0 256) 127) (or (and (= ~p3_old~0 (mod v_~p3_new~0_40 256)) (not (= v_~p3_new~0_40 ~nomsg~0))) (and (= ~p3_old~0 (mod ~send3~0 256)) (= v_~p3_new~0_40 ~nomsg~0)))) (and (or (and (= (+ ~p3_old~0 256) (mod ~send3~0 256)) (= v_~p3_new~0_40 ~nomsg~0)) (and (= ~p3_old~0 (mod v_~p3_new~0_40 256)) (not (= v_~p3_new~0_40 ~nomsg~0)))) (<= 128 (mod ~send3~0 256)))) (<= (mod v_~p3_new~0_40 256) 127)))))) (<= 0 (+ ~st2~0 ~st1~0 2147483648)) (<= 0 ~mode1~0) (= ~p3_new~0 ~nomsg~0) (<= (+ ~st2~0 ~st1~0) 2147483647) (<= (+ 2147483649 ~st3~0 ~st2~0 ~st1~0) 0) (= ~nomsg~0 ~p2_new~0) (<= ~mode1~0 1) (or (and (= ~mode2~0 1) (or (and (or (exists ((v_~p2_new~0_48 Int)) (and (<= (mod v_~p2_new~0_48 256) 127) (or (and (= ~p2_old~0 (mod v_~p2_new~0_48 256)) (not (= v_~p2_new~0_48 ~nomsg~0))) (and (= (mod ~send2~0 256) (+ 256 ~p2_old~0)) (= v_~p2_new~0_48 ~nomsg~0))))) (exists ((v_~p2_new~0_48 Int)) (and (or (and (= (+ 256 ~p2_old~0) (mod v_~p2_new~0_48 256)) (not (= v_~p2_new~0_48 ~nomsg~0))) (and (= (mod ~send2~0 256) (+ 256 ~p2_old~0)) (= v_~p2_new~0_48 ~nomsg~0))) (<= 128 (mod v_~p2_new~0_48 256))))) (<= 128 (mod ~send2~0 256))) (and (<= (mod ~send2~0 256) 127) (or (exists ((v_~p2_new~0_48 Int)) (and (or (and (= (mod ~send2~0 256) ~p2_old~0) (= v_~p2_new~0_48 ~nomsg~0)) (and (= (+ 256 ~p2_old~0) (mod v_~p2_new~0_48 256)) (not (= v_~p2_new~0_48 ~nomsg~0)))) (<= 128 (mod v_~p2_new~0_48 256)))) (exists ((v_~p2_new~0_48 Int)) (and (<= (mod v_~p2_new~0_48 256) 127) (or (and (= ~p2_old~0 (mod v_~p2_new~0_48 256)) (not (= v_~p2_new~0_48 ~nomsg~0))) (and (= (mod ~send2~0 256) ~p2_old~0) (= v_~p2_new~0_48 ~nomsg~0)))))))) (exists ((v_~mode2~0_73 Int)) (= (mod v_~mode2~0_73 256) 0))) (and (= ~mode2~0 0) (exists ((v_~mode2~0_73 Int)) (not (= (mod v_~mode2~0_73 256) 0))))))' at error location [2023-12-02 16:28:28,824 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:28:28,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:28:28,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 15 [2023-12-02 16:28:28,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391363944] [2023-12-02 16:28:28,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:28:28,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-02 16:28:28,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:28:28,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-02 16:28:28,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=913, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 16:28:28,826 INFO L87 Difference]: Start difference. First operand 64 states and 74 transitions. Second operand has 17 states, 16 states have (on average 4.5) internal successors, (72), 16 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:29,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:28:29,027 INFO L93 Difference]: Finished difference Result 93 states and 108 transitions. [2023-12-02 16:28:29,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 16:28:29,027 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.5) internal successors, (72), 16 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-12-02 16:28:29,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:28:29,028 INFO L225 Difference]: With dead ends: 93 [2023-12-02 16:28:29,028 INFO L226 Difference]: Without dead ends: 90 [2023-12-02 16:28:29,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=249, Invalid=1083, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 16:28:29,029 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 112 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:28:29,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 44 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:28:29,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-02 16:28:29,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 61. [2023-12-02 16:28:29,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 58 states have (on average 1.1724137931034482) internal successors, (68), 60 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:29,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2023-12-02 16:28:29,034 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 25 [2023-12-02 16:28:29,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:28:29,034 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2023-12-02 16:28:29,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.5) internal successors, (72), 16 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:29,034 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2023-12-02 16:28:29,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 16:28:29,035 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:28:29,035 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:28:29,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 16:28:29,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-02 16:28:29,236 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-12-02 16:28:29,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:28:29,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1167200040, now seen corresponding path program 1 times [2023-12-02 16:28:29,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:28:29,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870624753] [2023-12-02 16:28:29,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:28:29,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:28:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:28:29,656 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:28:29,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:28:29,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870624753] [2023-12-02 16:28:29,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870624753] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:28:29,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975768218] [2023-12-02 16:28:29,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:28:29,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:28:29,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:28:29,658 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:28:29,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 16:28:29,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:28:29,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 16:28:29,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:28:31,737 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:28:31,737 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:28:40,064 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:28:40,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975768218] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:28:40,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [427490756] [2023-12-02 16:28:40,067 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2023-12-02 16:28:40,067 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:28:40,067 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:28:40,067 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:28:40,067 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:28:44,890 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:28:47,779 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2522#(and (<= 0 ~mode1~0) (<= ~mode1~0 1) (<= 2147483648 (+ ~st3~0 ~st2~0 ~st1~0)))' at error location [2023-12-02 16:28:47,779 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 16:28:47,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:28:47,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 7] total 17 [2023-12-02 16:28:47,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580898417] [2023-12-02 16:28:47,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:28:47,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-02 16:28:47,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:28:47,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-02 16:28:47,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=250, Invalid=1010, Unknown=0, NotChecked=0, Total=1260 [2023-12-02 16:28:47,781 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand has 19 states, 18 states have (on average 4.222222222222222) internal successors, (76), 18 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:47,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:28:47,926 INFO L93 Difference]: Finished difference Result 87 states and 98 transitions. [2023-12-02 16:28:47,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 16:28:47,927 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.222222222222222) internal successors, (76), 18 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-12-02 16:28:47,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:28:47,927 INFO L225 Difference]: With dead ends: 87 [2023-12-02 16:28:47,927 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 16:28:47,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 641 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=285, Invalid=1121, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 16:28:47,929 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 45 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:28:47,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 44 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:28:47,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 16:28:47,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 16:28:47,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:47,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 16:28:47,930 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2023-12-02 16:28:47,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:28:47,930 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 16:28:47,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.222222222222222) internal successors, (76), 18 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 16:28:47,930 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 16:28:47,930 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 16:28:47,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2023-12-02 16:28:47,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2023-12-02 16:28:47,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2023-12-02 16:28:47,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2023-12-02 16:28:47,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2023-12-02 16:28:47,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2023-12-02 16:28:47,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2023-12-02 16:28:47,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2023-12-02 16:28:47,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2023-12-02 16:28:47,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2023-12-02 16:28:47,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2023-12-02 16:28:47,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2023-12-02 16:28:47,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2023-12-02 16:28:47,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2023-12-02 16:28:47,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-02 16:28:48,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-02 16:28:48,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 16:28:48,242 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 207) no Hoare annotation was computed. [2023-12-02 16:28:48,242 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 211) no Hoare annotation was computed. [2023-12-02 16:28:48,243 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 211) no Hoare annotation was computed. [2023-12-02 16:28:48,243 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 216) no Hoare annotation was computed. [2023-12-02 16:28:48,243 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 16:28:48,243 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 216) no Hoare annotation was computed. [2023-12-02 16:28:48,243 INFO L899 garLoopResultBuilder]: For program point L207(line 207) no Hoare annotation was computed. [2023-12-02 16:28:48,243 INFO L899 garLoopResultBuilder]: For program point L207-1(line 207) no Hoare annotation was computed. [2023-12-02 16:28:48,243 INFO L899 garLoopResultBuilder]: For program point L207-2(line 207) no Hoare annotation was computed. [2023-12-02 16:28:48,244 INFO L899 garLoopResultBuilder]: For program point L207-3(line 207) no Hoare annotation was computed. [2023-12-02 16:28:48,244 INFO L899 garLoopResultBuilder]: For program point L207-4(lines 207 226) no Hoare annotation was computed. [2023-12-02 16:28:48,244 INFO L899 garLoopResultBuilder]: For program point L207-5(lines 207 226) no Hoare annotation was computed. [2023-12-02 16:28:48,244 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 207) no Hoare annotation was computed. [2023-12-02 16:28:48,244 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 75) no Hoare annotation was computed. [2023-12-02 16:28:48,244 INFO L899 garLoopResultBuilder]: For program point L59-2(lines 53 78) no Hoare annotation was computed. [2023-12-02 16:28:48,244 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 223) no Hoare annotation was computed. [2023-12-02 16:28:48,244 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 211) no Hoare annotation was computed. [2023-12-02 16:28:48,244 INFO L899 garLoopResultBuilder]: For program point L60(line 60) no Hoare annotation was computed. [2023-12-02 16:28:48,245 INFO L899 garLoopResultBuilder]: For program point L60-1(line 60) no Hoare annotation was computed. [2023-12-02 16:28:48,245 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 211) no Hoare annotation was computed. [2023-12-02 16:28:48,245 INFO L895 garLoopResultBuilder]: At program point L259-2(lines 259 273) the Hoare annotation is: (let ((.cse0 (or (= ~st2~0 1) (= ~st2~0 0))) (.cse1 (or (= ~st3~0 0) (= ~st3~0 1))) (.cse2 (or (= ~st1~0 1) (= ~st1~0 0)))) (or (and .cse0 (= ~mode1~0 1) .cse1 .cse2) (and .cse0 (= (* 256 (div ~mode1~0 256)) ~mode1~0) .cse1 .cse2))) [2023-12-02 16:28:48,245 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 60) no Hoare annotation was computed. [2023-12-02 16:28:48,245 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 60) no Hoare annotation was computed. [2023-12-02 16:28:48,245 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2023-12-02 16:28:48,245 INFO L899 garLoopResultBuilder]: For program point L211-1(line 211) no Hoare annotation was computed. [2023-12-02 16:28:48,245 INFO L899 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2023-12-02 16:28:48,246 INFO L899 garLoopResultBuilder]: For program point L211-3(line 211) no Hoare annotation was computed. [2023-12-02 16:28:48,246 INFO L899 garLoopResultBuilder]: For program point L211-4(lines 211 223) no Hoare annotation was computed. [2023-12-02 16:28:48,246 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 16:28:48,246 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 216) no Hoare annotation was computed. [2023-12-02 16:28:48,246 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 216) no Hoare annotation was computed. [2023-12-02 16:28:48,246 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 207) no Hoare annotation was computed. [2023-12-02 16:28:48,246 INFO L899 garLoopResultBuilder]: For program point $Ultimate##100(lines 213 220) no Hoare annotation was computed. [2023-12-02 16:28:48,246 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 207) no Hoare annotation was computed. [2023-12-02 16:28:48,247 INFO L899 garLoopResultBuilder]: For program point L216(line 216) no Hoare annotation was computed. [2023-12-02 16:28:48,247 INFO L899 garLoopResultBuilder]: For program point L216-1(line 216) no Hoare annotation was computed. [2023-12-02 16:28:48,247 INFO L899 garLoopResultBuilder]: For program point L216-2(line 216) no Hoare annotation was computed. [2023-12-02 16:28:48,247 INFO L899 garLoopResultBuilder]: For program point L216-3(line 216) no Hoare annotation was computed. [2023-12-02 16:28:48,250 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:28:48,252 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 16:28:48,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:28:48 BoogieIcfgContainer [2023-12-02 16:28:48,263 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 16:28:48,263 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 16:28:48,263 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 16:28:48,263 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 16:28:48,264 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:27:59" (3/4) ... [2023-12-02 16:28:48,266 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 16:28:48,277 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2023-12-02 16:28:48,277 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-12-02 16:28:48,278 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 16:28:48,279 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 16:28:48,381 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 16:28:48,382 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 16:28:48,382 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 16:28:48,382 INFO L158 Benchmark]: Toolchain (without parser) took 50070.37ms. Allocated memory was 142.6MB in the beginning and 526.4MB in the end (delta: 383.8MB). Free memory was 100.7MB in the beginning and 355.4MB in the end (delta: -254.8MB). Peak memory consumption was 129.9MB. Max. memory is 16.1GB. [2023-12-02 16:28:48,383 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 102.8MB. Free memory is still 54.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:28:48,383 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.32ms. Allocated memory is still 142.6MB. Free memory was 100.2MB in the beginning and 87.1MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 16:28:48,384 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.55ms. Allocated memory is still 142.6MB. Free memory was 87.1MB in the beginning and 85.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:28:48,384 INFO L158 Benchmark]: Boogie Preprocessor took 32.70ms. Allocated memory is still 142.6MB. Free memory was 85.1MB in the beginning and 82.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:28:48,384 INFO L158 Benchmark]: RCFGBuilder took 691.91ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 82.9MB in the beginning and 112.5MB in the end (delta: -29.5MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2023-12-02 16:28:48,385 INFO L158 Benchmark]: TraceAbstraction took 48882.20ms. Allocated memory was 172.0MB in the beginning and 526.4MB in the end (delta: 354.4MB). Free memory was 111.5MB in the beginning and 362.8MB in the end (delta: -251.2MB). Peak memory consumption was 103.1MB. Max. memory is 16.1GB. [2023-12-02 16:28:48,385 INFO L158 Benchmark]: Witness Printer took 118.62ms. Allocated memory is still 526.4MB. Free memory was 362.8MB in the beginning and 355.4MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 16:28:48,387 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 102.8MB. Free memory is still 54.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.32ms. Allocated memory is still 142.6MB. Free memory was 100.2MB in the beginning and 87.1MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.55ms. Allocated memory is still 142.6MB. Free memory was 87.1MB in the beginning and 85.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.70ms. Allocated memory is still 142.6MB. Free memory was 85.1MB in the beginning and 82.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 691.91ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 82.9MB in the beginning and 112.5MB in the end (delta: -29.5MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. * TraceAbstraction took 48882.20ms. Allocated memory was 172.0MB in the beginning and 526.4MB in the end (delta: 354.4MB). Free memory was 111.5MB in the beginning and 362.8MB in the end (delta: -251.2MB). Peak memory consumption was 103.1MB. Max. memory is 16.1GB. * Witness Printer took 118.62ms. Allocated memory is still 526.4MB. Free memory was 362.8MB in the beginning and 355.4MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 207]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 207]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 207]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 207]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 211]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 211]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 211]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 211]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 216]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 216]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 216]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 216]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 48.8s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 511 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 511 mSDsluCounter, 567 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 295 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 776 IncrementalHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 272 mSDtfsCounter, 776 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 252 GetRequests, 130 SyntacticMatches, 4 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1926 ImplicationChecksByTransitivity, 11.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=6, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 123 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 7 NumberOfFragments, 55 HoareAnnotationTreeSize, 1 FomulaSimplifications, 710 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 254 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 20.3s InterpolantComputationTime, 235 NumberOfCodeBlocks, 235 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 292 ConstructedInterpolants, 0 QuantifiedInterpolants, 10790 SizeOfPredicates, 71 NumberOfNonLiveVariables, 398 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 17 InterpolantComputations, 8 PerfectInterpolantSequences, 14/63 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold - InvariantResult [Line: 259]: Loop Invariant Derived loop invariant: ((((((st2 == 1) || (st2 == 0)) && (mode1 == 1)) && ((st3 == 0) || (st3 == 1))) && ((st1 == 1) || (st1 == 0))) || (((((st2 == 1) || (st2 == 0)) && ((256 * (mode1 / 256)) == mode1)) && ((st3 == 0) || (st3 == 1))) && ((st1 == 1) || (st1 == 0)))) RESULT: Ultimate proved your program to be correct! [2023-12-02 16:28:48,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b6899b6-3409-402a-b1bc-0477c0b13f67/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE